/// Copyright (c) 2024 The X-Files Research Institute
///
/// All rights reserved.
///
/// Redistribution and use in source and binary forms, with or without modification,
/// are permitted provided that the following conditions are met:
///
///     * Redistributions of source code must retain the above copyright notice,
///       this list of conditions and the following disclaimer.
///     * Redistributions in binary form must reproduce the above copyright notice,
///       this list of conditions and the following disclaimer in the documentation
///       and/or other materials provided with the distribution.
///     * Neither the name of Stoream nor the names of its contributors
///       may be used to endorse or promote products derived from this software
///       without specific prior written permission.
///
/// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
/// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
/// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
/// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
/// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
/// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
/// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
/// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
/// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
/// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
/// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@genType.as("File")
type t = {
  filename: string,
  filepath: string,
  filesize: int,
}

let stringOfFileSize = (filesize: int): string => {
  let carry = filesize->Int.toString->String.length / 3
  switch ["B", "KB", "MB", "GB", "TB"]->Array.at(carry) {
  | Some(unit) =>
    `${(filesize->Int.toFloat /. Math.pow(1000., ~exp=carry->Int.toFloat))
        ->Float.toFixed(~digits=2)} ${unit}`
  | None => filesize->Int.toString
  }
}